ARLA/CLUSTER: [vhf-hamradio] strange VHF signals

Terça-Feira, 1 de Maio de 2007 - 09:33:35 WEST

Interessante seria juntar um MP3 com uma amostra do sinal. Doutra forma não
se pode fazer uma ideia do que se trata

73 CT4RK

2007/5/1, Jose guerreiro <ct1eps  gmail.com>:
>
> I think it is multipath off of a air plane much like doppler affect off a
> satalight exceppt it does not move as fast (sat is 2kcs)
> milton
>
> mike <kd0ar  sbcglobal.net <kd0ar%40sbcglobal.net>> wrote:
> I'm listening to the W3TTS beacon, which is audible 100% of the time
> here.
>
> I notice on occasion, I'm hearing it on 2 different frequencies, the
> second freq just kinda pops in, and there is usually some flutter on it.
> it lasts for various lengths of time. The 2nd frequency is very close
> to the sirect one, maybe 50 hz off. usually its low, but sometimes its
> high. The 2nd freq does not change, best I can tell. It almost seems
> like some kinda doppler shift. This is on 144.300.
> I have noticed this on other signals as well.
>
> Wonder if any of you might have heard something similar and perhaps can
> offer an explanation?
>
> Mike, kd0ar
>
> [Non-text portions of this message have been removed]
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-- 
BPL/PLC ......No thanks!!!
Best 73 from:
regards from:
CT4RK
Carlos Mourato
Sines - Portugal

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